[-b R B (N-th band from R-th raster)]

[robeson1010]

how to seg only in some band?

[rodolfolotte]

What you mean? Perform the segmentation itself (createSuperpixelXXX() - based only in some bands), or perform the statistics for some bands? I never used this argument [-b], but I will give you my suggestion.

If it is the first (perform the segmentation), I would recommend to strip out the band you want after the line:

LoadRaster( InFilenames[0], raster );

Check if it s more than one band and then take what you are interested:

size_t m_bands = raster.size();
if (m_bands > 1){ 
STRIP_OUT_THE_BAND 
}

Some link that could help you: http://www.gdal.org/gdal_translate.html
After you get the band, and transform it as a raster, pass it as an argument to "createSuperpixelXXX() instead.

Hope I could help!

[robeson1010]

I mean I have a raster with 6 bands and I only want segment the raster with band (1,2,3,4). How to deal with it

[rodolfolotte]

You need to do some process to, first, split out all bands and, second, stack it in a new raster. After to do this process, you call createSuperpixelXXX() with this new image.
What I recommended first was to read more about GDAL (translate).

[robeson1010]

thanks